Map the intranet to the public network [no public IP required]

Sometimes we do server building projects with local computers , You need to map the intranet to the public network , Allow public network users to access the projects built on the intranet . But because of IPV4 Depletion of resources , We will not be assigned to the public network IP, It's the intranet IP, It is impossible to access the intranet directly from the public network .

And there is no public network IP Under the circumstances , How to map the intranet to the public network ？

In this case , You can do it Intranet through , Traffic flows through the third-party public network IP The server forwards , Download an intranet penetration tool , You can easily access the intranet through the public network .

I'm using cpolar Intranet through , Support http/https/tcp agreement , Unlimited flow , Support permanent free use （ Yes 4 Free tunnel 、1M bandwidth ）.

also ,cpolar It's easy to use , You only need to install the configuration client on the intranet device , You can create a tunnel to map the intranet port to the public network .

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1. Register and install for free cpolar Intranet through

cpolar Official website ：https://www.cpolar.com/

• Windows The system can be downloaded and installed directly
• linux The system can refer to this tutorial for installation and configuration —— linux System installation cpolar Intranet through

2. Map the intranet to the public network

Browser access http://localhost:9200/, Use free registration cpolar To login , And click the left dashboard —— Tunnel management —— Create a tunnel

• Tunnel name ： Customizable
• agreement ： Support http/https/tcp agreement
• Local address ： Fill in the local port number you want to map
• Domain name type ： Free choice “ Random domain name ”, Paying users can choose to configure “ Fixed secondary subdomain name ” or “ Custom domain name ”
• region ： Can choose United States、China、Europe、Hong Kong…
  

3. Get the mapped public address

When the tunnel is successfully created , You can go to state —— Online tunnel list , View the tunnel just created . Generate the corresponding public network address , Copy and use , You can realize public network access to intranet services .